The prop department placed several in-jokes on the label of the raktajino bottle. The label reads: "100% Columbian," "Made from the Green Hills of Earth" (a title of a novel by Robert Heinlein), and "Imported by Harcourt Mudd".

The map used in the original "The Cage" was published in the early 1960s. The landmass of northern South America was seen on a political map of the northern hemisphere. Decades later, the map used in the remastered "The Cage" was a Central Intelligence Agency map published either in April 2007 or September 2008. [1][2] The difference, which was not noticeable at the resolution of the image from the episode, was the addition of Kosovo, which gained its independence between the releases. The listed countries were those which could be seen in both maps.